Renew Power Systems, Inc. (RPSi), now operating as SYNCRIS, is a Minneapolis company that designs and manufactures grid-forming power inverters for microgrids. Its patented hardware-based power controls let paralleled inverters self-balance, share load, and absorb power surges, which simplifies microgrid operation and maintenance and keeps the system component-agnostic. The inverters are stackable, rack-mountable, silicon-carbide, fanless units built in Minnesota and sold nationally, largely through microgrid installers serving commercial and industrial sites. The technology was developed by University of St. Thomas electrical engineering professor Greg Mowry with Zach Emond, and Scott Tracy is chief executive.